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E1131

Exonuclease III from Escherichia coli BE25 /psGR3

buffered aqueous glycerol solution

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About This Item

CAS Number:
UNSPSC Code:
12352204
EC Number:
232-912-1
MDL number:
EC Number:


grade

Molecular Biology

form

buffered aqueous glycerol solution

mol wt

28 kDa

UniProt accession no.

storage temp.

−20°C

Gene Information

Escherichia coli K12 ... xthA(946254)

General description

A 3′→5′ exonuclease which catalyzes the removal of mononucleotides from the 3′-end of dsDNA. The enzyme also has apurinic and apyrimidinic endonuclease, 3′-DNA phosphatase, and RNase H activities. Activity is strongly dependent on temperature, salt concentration, and the ratio of enzyme to DNA, therefore reaction conditions must be optimized for specific applications.

Application

Suitable for:
  • Production of strand specific probes
  • Preparation of single stranded templates for Sanger dideoxy sequencing
  • Site directed mutagenesis

Other Notes

Exonuclease III is supplied as a solution in 5 mM potassium phosphate (pH 6.5), 200 mM KCl, 0.05 mM EDTA, 5 mM 2-mercaptoethanol, 200 μg/ml BSA, and 50% glycerol.
One unit releases 1 nmole of acid-soluble nucleotides from sonicated calf thymus DNA in 30 min at 37 °C.


Storage Class

12 - Non Combustible Liquids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, multi-purpose combination respirator cartridge (US)



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L H Guo et al.
Nucleic acids research, 10(6), 2065-2084 (1982-03-25)
We describe improve enzymatic methods for sequencing method for sequencing DNA. They are based on partial digestion of duplex DNA with exonuclease III to produce DNA molecules with 3' ends shortened to varying lengths, followed by repair synthesis to extend
Sai Bi et al.
Chemical communications (Cambridge, England), 48(7), 1018-1020 (2011-12-07)
The network consisting of three kinds of unlabeled stem-loop DNA molecular beacons (MBs) is activated by target DNA in the presence of exonuclease-III (Exo-III), achieving the concept of exonuclease-assisted cascaded recycling amplification (Exo-CRA) for DNA detection with a wide dynamic
Peng Hu et al.
Biosensors & bioelectronics, 34(1), 83-87 (2012-03-03)
We report here a graphene oxide (GO)-based fluorescent aptasensor for adenosine detection by employing exonuclease III (Exo III) as a signal amplifying element. In the absence of adenosine, the adenosine aptamers hybridized with the complementary DNA (cDNA), and the Exo